Basic Details Surname Thomson Forenames William Gender Male Information stated on memorial Alternative forename Billy War Second World War (1939-1945) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) RCAF Our References Service (Primary - Our reference) Commonwealth Armed Forces Unit (Primary - Our reference) Cambridgeshire Regiment Death and Burial details Country of death Battle of Britain Year of death 1942 Month of death May Day of death 17 Age at death 23 Manner of death as stated Killed in action Manner of death reference Killed in Action